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/*
* Oreka -- A media capture and retrieval platform
*
* Copyright (C) 2005, orecx LLC
*
* http://www.orecx.com
*
* This program is free software, distributed under the terms of
* the GNU General Public License.
* Please refer to http://www.gnu.org/copyleft/gpl.html
*
*/
#ifndef __PACKETHEADERDEFS_H__
#define __PACKETHEADERDEFS_H__
#include "ace/OS_NS_arpa_inet.h"
#include "StdString.h"
// Structure of Ethernet header
typedef struct
{
unsigned char sourceMac[6];
unsigned char destinationMac[6];
unsigned short length;
} EthernetHeaderStruct;
// Structure of an internet header, naked of options, only valid for LITTLE ENDIAN
typedef struct
{
unsigned char ip_hl:4; // Header length
unsigned char ip_v:4; // IP protocol version
unsigned char ip_tos; // Type of service
unsigned short ip_len; // Total length
unsigned short ip_id; // Identification
unsigned short ip_off; // Fragment offset field
unsigned char ip_ttl; // Time to live
unsigned char ip_p; // Protocol
unsigned short ip_sum; // Header checksum
struct in_addr ip_src; // Source address
struct in_addr ip_dest; // Destination address
} IpHeaderStruct;
// Strucutre of a TCP header, only valid for LITTLE ENDIAN
typedef struct
{
unsigned short source; // source port
unsigned short dest; // destination port
unsigned long seq; // sequence number
unsigned long ack; // acknowledgement id
unsigned int x2:4; // unused
unsigned int off:4; // data offset
unsigned char flags; // flags field
unsigned short win; // window size
unsigned short sum; // tcp checksum
unsigned short urp; // urgent pointer
} TcpHeaderStruct;
#define TCP_HEADER_LENGTH 20
// Structure of UDP header
typedef struct
{
unsigned short source; // Source port
unsigned short dest; // Destination port
unsigned short len; // UDP length
unsigned short check; // UDP Checksum
} UdpHeaderStruct;
#define RTP_PT_PCMU 0
#define RTP_PT_PCMA 8
// Structure of RTP header, only valid for little endian
typedef struct
{
unsigned short cc:4; // CSRC count
unsigned short x:1; // header extension flag
unsigned short p:1; // padding flag
unsigned short version:2; // protocol version
unsigned short pt:7; // payload type
unsigned short m:1; // marker bit
unsigned short seq; // sequence number
unsigned int ts; // timestamp
unsigned int ssrc; // synchronization source
//unsigned int csrc[1]; // optional CSRC list
} RtpHeaderStruct;
typedef struct
{
unsigned long len;
unsigned long reserved;
unsigned long messageType;
} SkinnyHeaderStruct;
typedef struct
{
SkinnyHeaderStruct header;
unsigned long conferenceId;
unsigned long passThruPartyId;
struct in_addr remoteIpAddr;
unsigned long remoteTcpPort;
// and some more fields
} SkStartMediaTransmissionStruct;
typedef struct
{
SkinnyHeaderStruct header;
unsigned long conferenceId;
unsigned long passThruPartyId;
} SkStopMediaTransmissionStruct;
typedef struct
{
SkinnyHeaderStruct header;
char callingPartyName[40];
char callingParty[24];
char calledPartyName[40];
char calledParty[24];
unsigned long lineInstance;
unsigned long callId;
unsigned long callType;
} SkCallInfoStruct;
typedef struct
{
SkinnyHeaderStruct header;
unsigned long unknown1;
unsigned long callId;
char unknown2[24];
char parties[76];
} SkNewCallInfoStruct;
#define SKINNY_CTRL_PORT 2000
#define SKINNY_MIN_MESSAGE_SIZE 12
#define SKINNY_HEADER_LENGTH 8
#define SKINNY_MSG_UNKN "Unkn"
#define SKINNY_MSG_START_MEDIA_TRANSMISSION "StartMediaTransmission"
#define SKINNY_MSG_STOP_MEDIA_TRANSMISSION "StopMediaTransmission"
#define SKINNY_MSG_CALL_INFO_MESSAGE "CallInfoMessage"
#define SKINNY_CALL_TYPE_INBOUND 1
#define SKINNY_CALL_TYPE_OUTBOUND 2
#define SKINNY_CALL_TYPE_FORWARD 3
typedef enum
{
SkStartMediaTransmission = 0x008A,
SkStopMediaTransmission = 0x008B,
SkCallInfoMessage = 0x008F,
SkUnkn = 0x0
} SkinnyMessageEnum;
int SkinnyMessageToEnum(CStdString& msg);
CStdString SkinnyMessageToString(int msgEnum);
#endif
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